Few watch collections have garnered the reputation and legacy of the Nautilus. Fifty years of continuous production, a design that has remained unchanged in its distinctive silhouette and proportions, and a secondary market that — even after a dramatic correction from its 2021 peak — hovers at multiples of retail. The Nautilus's status is not manufactured. It is the result of a design so unique it has inspired dozens of other pieces across the global watch market.The Nautilus family spans three-hand automatics, moonphase complications, annual and perpetual calendars, varied case sizes, and materials from steel to white and rose gold. It spans five decades of production history and a vintage market with its own personality.Today we are delving into the Nautilus in a reference-by-reference review of what each piece provides, how it wears, and what a serious buyer should know before purchase. Let's get into it.